Keeping Spec

Ultimate Reliability

When so much rides on engines running properly and under heavy loads, clean fuel will keep businesses running.

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Meet the Diesel Doctor

Capt. Jeff Werner has been in the yachting industry for almost 25 years, and that has given him plenty of hands on experience with diesel engines on a daily basis. He knows the problems that contaminated fuel can inflict on any diesel engine, and that’s why he started Diesel Doctor in 2006. Jeff is the Diesel Doctor and the guru for understanding and solving diesel fuel problems. Capt. Jeff writes a monthly column about diesel fuel related issues in The Triton, a magazine for professional captains and crew in the marine industry.